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-----Transparent for C-Band Transmission
2001
I am an engineering coop student and I am looking at a enclosure for a unit that will contain an antenna and a receiver. The enclosure is described as a "light gray ABS(Acrylonitrile-Butadiene-Styrene) and polycarbonate plastics resins". I am wondering if this type of substance will be transparent for c-band transmission, that is 3.9 to 5.85 GHz. Could you reply to me as soon as possible , any help would be greatly appreciated. If you have no idea, is there any suggested ways that I can find the correct solution. It is very important.
Thanks
Jody Stewart- St. John's, Newfoundland, Canada
Most electrically non-conducting materials are transparent to radio through microwave transmission. Still, to get an accurate answer about % dissipation, you may want to talk to experts in EMI shielding business, e.g., find a person at Chromerics in Woburn, MA.
Mandar Sunthankar- Fort Collins, Colorado
2001
Sir,
It has been my personal experience that plastics as you described,styrenes, such as you will find in the lids of coffee cans are indeed fairly transparent to C band and definitely not to X band. I do not know if the specific compound you mentioned is, however. Take two coax to wave-guide transitions and bolt them together face to face and measure the output of a C band source with a bolometer. Then, place a sheet of the material between the transitions and make the same measurement. Compare the measurements. I would consider a difference below 3 db to be usable.
Norman B. Czerski49th STS - Eagle River, Alaska USA
2003
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